Dire Brew

Use: An enchanted alcoholic beverage that may have an effect on your appearance...

Dire Brew is an alcoholic drink that can be obtained by speaking to Dark Iron Brewer in the Grim Guzzler in Blackrock Depths. Using the item turns you into a Dark Iron dwarf for 1 hour and makes you drunk too. Of course after speaking with Dark Iron Brewer several times to get him to drop his Dark Iron cup, you are very drunk already.